A great sounding string that holds tune well, these are packaged in a coated paper. The strings themselves are not coated, but they have a slicker than normal feel. They hold their tune well and have a little better than average life for a phosphorus bronze string. I play mainly un-amped bluegrass and 'electric acoustic' country and these strings have great tone and sustain in both instances. If you have a heavy hand you'll get a little more buzz on attack, but overall these are better than average.